June 19, 2006

LISA V: Citation Analysis for Astronomy

The second session was on Citation Analysis for Astronomy. These are my notes, not detailed transcriptions, and may include my own opinions.

A. Accomazzi – Creation and use of citations in ADS

How ADS creates and uses the citation bibcodes. Citations only exist in ADF if both referencing and referenced papers are in ADS.

Examples of how to find various things in ADS using their filters and sorting options….very powerful tools and options, be sure to go browse them and start using them! Also set up a myADS account – could be very useful for keeping track of papers about ATST etc. BUT bear in mind that citations are NOT complete – coverage is good for astronomy and OK for physics but poor for everything else.

U. Grothkopf – The H-index in telescope statistics

Telescope statistics are used as a facility assessment (among other things); they use # of pubs, # of citations, and contributions to high-impact favors. H-index = a researcher’s h-index means they have h papers with at least h citations. How to find it – list of all papers ranked by citation count, so h = # citations = rank.

Applying H to observatories: collected data on papers using observatory data and then checked H ranking. Warning: It’s impossible to completely compare; different apertures, wavelengths, etc etc – Used M number – h divided by number of years of operation of the observatory (helps compensate for length of time in operation).

Philosophically: be aware of comparing statistics. They can be meaningless…

(Not sure what the H and M indices are good for.)

J. Madrid – Measuring the scientific output of HST

Interesting stuff but maybe being presented a tad too fast? Some slides were up and gone so fast I didn’t even get a chance to register what they were….

High-Impact Papers: 200 most cited papers in a given year (citation ranking from ADS 1.5 years after publication).

M. Kurtz – Future of Technical Libraries

First a definition of technical libraries (mine is exactly it) and a review of the past; current situation is dire; technical libraries are having real problems and facing huge changes. Then a preview of the future; there will be no “real” libraries, but all the digital interactions between journals, data centers, ADS, etc etc will be the “future libraries”. (Not sure I agree with that at all….)



Christina said...

The H factor is from Hirsch, proposed in an e-print on Arxiv: http://www.arxiv.org/PS_cache/physics/pdf/0508/0508025.pdf

Don't know the M factor, though.

Ruth said...

thanks, Christina, I forgot to define what the H stood for. I still don't really see what they're good for, though... ! (I know what they're used for, I'm just not convinced that it's meaningful analysis.)